<?php

/*
 * phpMyEdit - instant MySQL table editor and code generator
 *
 * extensions/phpMyEdit-report.class.php - phpMyEdit report extension
 * ____________________________________________________________
 *
 * Developed by Ondrej Jombik <nepto@platon.sk>
 * Copyright (c) 2002-2006 Platon Group, http://platon.sk/
 * All rights reserved.
 *
 * See README file for more information about this software.
 * See COPYING file for license information.
 *
 * Download the latest version from
 * http://platon.sk/projects/phpMyEdit/
 */

/* $Platon: phpMyEdit/extensions/phpMyEdit-report.class.php,v 1.11 2004/12/30 19:59:00 nepto Exp $ */

/* Extension TODO:

   - allow user to enable/disable particular field in reporting (maybe 'X' flag
     for indicating that field is forbidden is good idea)
   - support for ['help'] in select fields screen
   - make extension's option for selecting "Select fields" link or button
 */

require_once dirname(__FILE__).'/../phpMyEdit.class.php';

class phpMyEdit_report extends phpMyEdit
{

    function phpMyEdit_report($opts) /* {{{ */
    {
        $opts['options'] = 'L';
        $execute = 1;
        isset($opts['execute']) && $execute = $opts['execute'];
        $opts['execute'] = 0;
        parent::phpMyEdit($opts);
        $execute && $this->execute();
    } /* }}} */

    function make_language_labels($language) /* {{{ */
    {
        $ret = parent::make_language_labels($language);
        strlen($ret['Make report'])        <= 0 && $ret['Make report']        = 'Make report';
        strlen($ret['Select fields'])      <= 0 && $ret['Select fields']      = 'Select fields';
        strlen($ret['Records per screen']) <= 0 && $ret['Records per screen'] = 'Records per screen';
        return $ret;
    } /* }}} */

    function get_cgi_cookie_var($name, $default_value = null) /* {{{ */
    {
        $ret = $this->get_cgi_var($name, null);
        if ($ret === null) {
            global $HTTP_COOKIE_VARS;
            $ret = @$HTTP_COOKIE_VARS[$name.'_'.$this->tb.'_cookie'];
            if (! isset($ret)) {
                $ret = $default_value;
            }
        }
        return $ret;
    } /* }}} */

    function display_list_table_buttons($total_recs, $position) /* {{{ */
    {	/* This is mostly copy/paste from core class. */
        $listall = $this->inc <= 0; // Are we doing a listall?
        echo '<table class="',$this->getCSSclass('navigation', $position),'">',"\n";
        echo '<tr class="',$this->getCSSclass('navigation', $position),'">',"\n";
        echo '<td class="',$this->getCSSclass('buttons', $position),'">',"\n";
        echo '<input class="',$this->getCSSclass('fields-select', $position);
        echo '" type="submit" name="fields_select" value="',$this->labels['Select fields'],'">&nbsp;';
        // Note that <input disabled isn't valid HTML, but most browsers support it
        $disabled = ($this->fm > 0 && ! $listall) ? '' : ' disabled';
        echo '<input',$disabled,' class="',$this->getCSSclass('prev', $position);
        echo '" type="submit" name="',ltrim($disabled),'prev" value="',$this->labels['Prev'],'">&nbsp;';
        $disabled = ($this->fm + $this->inc < $total_recs && ! $listall) ? '' : ' disabled';
        echo '<input',$disabled,' class="',$this->getCSSclass('next', $position);
        echo '" type="submit" name="',ltrim($disabled),'next" value="',$this->labels['Next'],'">';
        // Message is now written here
        echo '</td>',"\n";
        if (strlen(@$this->message) > 0) {
            echo '<td class="',$this->getCSSclass('message', $position),'">',$this->message,'</td>',"\n";
        }
        // Display page and records statistics
        echo '<td class="',$this->getCSSclass('stats', $position),'">',"\n";
        if ($listall) {
            echo $this->labels['Page'],':&nbsp;1&nbsp;',$this->labels['of'],'&nbsp;1';
        } else {
            echo $this->labels['Page'],':&nbsp;',($this->fm / $this->inc) + 1;
            echo '&nbsp;',$this->labels['of'],'&nbsp;',max(1, ceil($total_recs / abs($this->inc)));
        }
        echo '&nbsp; ',$this->labels['Records'],':&nbsp;',$total_recs;
        echo '</td></tr></table>',"\n";
    } /* }}} */

    function display_report_selection_buttons($position) /* {{{ */
    {
        echo '<table class="',$this->getCSSclass('navigation', $position),'">',"\n";
        echo '<tr class="',$this->getCSSclass('navigation', $position),'">',"\n";
        echo '<td class="',$this->getCSSclass('buttons', $position),'">',"\n";
        echo '<input class="',$this->getCSSclass('make-report', $position);
        echo '" type="submit" name="prepare_filter" value="',$this->labels['Make report'],'">',"\n";
        echo '</td></tr></table>',"\n";
    } /* }}} */

    function get_select_fields_link() /* {{{ */
    {
        $link = '<a href="'.htmlspecialchars($this->page_name).'?fields_select=1';
        for ($i = 0; $i < count($table_cols); $i++) {
            $varname = 'qf'.$i;
            $value   = $this->get_cgi_cookie_var($varname);
            if (! empty($value)) {
                $link .= htmlspecialchars(
                        '&'.rawurlencode($varname).
                        '='.rawurlencode($value));
            }
        }
        $link .= htmlspecialchars($this->cgi['persist']);
        $link .= '">'.$this->labels['Select fields'].'</a>';
        return $link;
    } /* }}} */

    function execute() /* {{{ */
    {
        global $HTTP_GET_VARS;
        global $HTTP_POST_VARS;

        /*
         * Extracting field names
         */

        $table_cols     = array();
        $all_table_cols = array();

        if ($this->connect() == false) {
            return false;
        }
        $query_parts = array(
                'type'   => 'select',
                'select' => '*',
                'from'   => $this->tb,
                'limit'  => '1');
        $result = $this->myquery($this->get_SQL_query($query_parts), __LINE__);
        $all_table_cols = array_keys(@mysql_fetch_array($result, MYSQL_ASSOC));
        if (count($all_table_cols) <= 0) {
            $this->error('database fetch error');
            return false;
        }
        foreach (array_keys($this->fdd) as $field_name) {
            if (preg_match('/^\d*$/', $field_name))
            continue;
            $idx = array_search($field_name, $all_table_cols);
            if ($idx !== false)
            $table_cols[$field_name] = mysql_field_len($result, $idx);
        }
        @mysql_free_result($result);
        unset($all_table_cols);

        /*
         * Preparing variables
         */

        $fields_select  = $this->get_cgi_var('fields_select');
        $filter         = $this->get_cgi_var('filter');
        $prepare_filter = $this->get_cgi_var('prepare_filter');
        $this->inc      = intval($this->get_cgi_cookie_var('inc'));
        $force_select   = true;
        $none_displayed = true;
        $expire_time    = time() + (3600 * 24 * 30 * 12 * 5); // five years
        $headers_sent   = @headers_sent();

        foreach (array_merge(array('@inc'), array_keys($table_cols)) as $col) {
            $varname = ($col[0] == '@' ? substr($col, 1) : 'have_'.$col);
            if (isset($HTTP_POST_VARS[$varname]) || isset($HTTP_GET_VARS[$varname])) {
                $value = $HTTP_POST_VARS[$varname];
                if (isset($HTTP_GET_VARS[$varname])) {
                    $value = $HTTP_GET_VARS[$varname];
                }
                if ($varname != 'inc' && ! empty($value)) {
                    $force_select = false;
                }
                $headers_sent || setcookie($varname.'_'.$this->tb.'_cookie', $value, $expire_time);
                $this->cgi['persist'] .= '&'.urlencode($varname);
                $this->cgi['persist'] .= '='.urlencode($value);
            } else {
                $headers_sent || setcookie($varname.'_'.$this->tb.'_cookie', '', time() - 10000);
            }
        }

        $i = -1;
        foreach (array_keys($this->fdd) as $key) {
            $i++;
            if (preg_match('/^\d*$/', $key))
            continue;
            $varname = 'have_'.$key;
            $value   = @$this->get_cgi_cookie_var($varname, '');
            $options = @$value ? 'LV' : '';
            $this->fdd[$i]['options']   = $options;
            $this->fdd[$key]['options'] = $options;
            $this->displayed[$i] = @$value ? true : false;
            $value && $none_displayed = false;
        }

        /*
         * Redirecting when neccessary
         * (hackity hack with unregistering/unchecking fields)
         */

        if ($prepare_filter && ! $headers_sent) {
            $this->execute_redirect();
            exit;
        }

        /*
         * Check if field selection report screen has to be displayed
         */

        if (isset($fields_select) || $force_select || $none_displayed) {
            $this->execute_report_screen($table_cols);
            return true;
        }

        if (0) {
            $this->message .= $this->get_select_fields_link();
        }

        // parent class call
        return parent::execute();
    } /* }}} */

    function execute_redirect() /* {{{ */
    {
        global $HTTP_SERVER_VARS;
        global $HTTP_GET_VARS;
        global $HTTP_POST_VARS;
        $redirect_url = 'http://'.$HTTP_SERVER_VARS['HTTP_HOST'].$HTTP_SERVER_VARS['SCRIPT_NAME'];
        $delim = '?';
        foreach ($HTTP_POST_VARS + $HTTP_GET_VARS as $cgi_var_name => $cgi_var_value) {
            $cgi_var_name == 'prepare_filter' && $cgi_var_name = 'filter';
            $redirect_url .= $delim;
            $redirect_url .= rawurlencode($cgi_var_name).'='.rawurlencode($cgi_var_value);
            $delim == '?' && $delim = '&';
        }
        $redirect_url .= $this->cgi['persist'];
        header('Location: '.$redirect_url);
        exit;
    } /* }}} */

    function execute_report_screen($table_cols) /* {{{ */
    {
        echo '<form class="',$this->getCSSclass('form'),'" action="';
        echo htmlspecialchars($this->page_name),'" method="POST">',"\n";
        if ($this->nav_up()) {
            $this->display_report_selection_buttons('up');
            echo '<hr class="',$this->getCSSclass('hr', 'up'),'">',"\n";
        }
        echo '<table class="',$this->getCSSclass('main'),'" summary="',$this->tb,'">',"\n";

        $i = 0;
        foreach ($table_cols as $key => $val) {
            $css_postfix    = @$this->fdd[$key]['css']['postfix'];
            $css_class_name = $this->getCSSclass('input', null, true, $css_postfix);
            $varname        = 'have_'.$key;
            $value          = $this->get_cgi_cookie_var($varname);
            $checked        = @$value ? ' checked' : '';
            echo '<tr class="',$this->getCSSclass('row', null, 'next', $css_postfix),'">',"\n";
            echo '<td class="',$this->getCSSclass('key', null, true, $css_postfix),'">';
            echo $this->fdd[$i]['name'],'</td>',"\n";
            echo '<td class="',$this->getCSSclass('check', null, true, $css_postfix),'">';
            echo '<input class="',$css_class_name,'" type="checkbox" name="';
            echo htmlspecialchars($varname),'"',$checked,'>';
            echo '</td>',"\n";
            echo '<td class="',$this->getCSSclass('value', null, true, $css_postfix),'"';
            echo $this->getColAttributes($key),">\n";
            $varname = 'qf'.$i;
            $value   = $this->get_cgi_cookie_var($varname);
            if ($this->fdd[$key]['select'] == 'D' || $this->fdd[$key]['select'] == 'M') {
                $from_table = ! $this->col_has_values($key) || isset($this->fdd[$key]['values']['table']);
                $selected   = $value;
                $value      = $this->set_values($key, array('*' => '*'), null, $from_table);
                $multiple   = $this->col_has_multiple_select($key);
                $multiple  |= $this->fdd[$key]['select'] == 'M';
                $readonly   = false;
                $strip_tags = true;
                $escape     = true;
                echo $this->htmlSelect($varname.'_id', $css_class_name, $value, $selected,
                    $multiple, $readonly, $strip_tags, $escape);
            } else {
                echo '<input class="',$css_class_name,'" type=text name="';
                echo htmlspecialchars($varname),'" value="',htmlspecialchars($value),'" size="';
                echo min(40, $val),'" maxlength="',min(40, max(10, $val)),'">';
            }
            echo '</td>',"\n",'</tr>',"\n";
            $i++;
        }
        echo '<tr class="',$this->getCSSclass('row', null, 'next', $css_postfix),'">',"\n";
        echo '<td class="',$this->getCSSclass('key', null, true, $css_postfix),'" colspan="2">';
        echo $this->labels['Records per screen'],'</td>';
        echo '<td class="',$this->getCSSclass('value', null, true, $css_postfix),'">';
        echo '<input class="',$css_class_name,'" type="text" name="inc" value="',$this->inc.'">';
        echo '</td></tr>',"\n";
        echo '</table>',"\n";
        if ($this->nav_down()) {
            echo '<hr class="',$this->getCSSclass('hr', 'down'),'">',"\n";
            $this->display_report_selection_buttons('down');
        }
        echo '</form>';
    } /* }}} */

}

/* Modeline for ViM {{{
 * vim:set ts=4:
 * vim600:fdm=marker fdl=0 fdc=0:
 * }}} */

?>
